Manson Girls focuses on the period leading up to the 1969 murders of nine people. Manson and three followers were convicted in 1971 in the slayings. Lo told Variety that she’s aiming to illustrate how and why the girls came under Manson’s command.

“The girls were all very talented but it was a very seductive time,” she said. “We really don’t want to sensationalize the story any further than it already has been. I’ve always been fascinated by how the girls came under the spell of this strange, manipulative man.”